英文關鍵字
alarm
automation
automobile
blue
business
closeup
color
equipment
factory
glare
green
hall
harnesses
industrial
industry
interior
lamp
light
lights
line
machine
manufacturing
merging
metal
operation
order
people
pillar
plant
plastic
process
production
real
red
setting
shaking
shifting
signal
signaling
switched
technology
time
vehicles
warning
wiring
work
working
yellow